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 # Check digit algorithms
 
+[![CircleCI](https://dl.circleci.com/status-badge/img/circleci/P8zYxsfE41FNrt2ohcdfya/KqeiFzsrrrSf2xZxQh6gvs/tree/main.svg?style=svg)](https://dl.circleci.com/status-badge/redirect/circleci/P8zYxsfE41FNrt2ohcdfya/KqeiFzsrrrSf2xZxQh6gvs/tree/main)
+
 Algorithms:
 
 * Damm algorithm